There are many different synonyms for the phrase "come on/along" that can be useful in a variety of situations. Some common synonyms include "bring," "join," "accompany," "follow," "escort," and "tag along." These words can be used in different contexts to convey the same basic message: that someone should join in or come with someone else. For example, you might say "come on" to a friend who is hesitant to try a new activity, or you might suggest that someone "join" you for a walk or other outing. Overall, there are many different ways to express the idea of coming together or joining forces, and these synonyms can be a helpful tool for expanding your vocabulary and improving your communication skills.